Atomizing apparatus.



No. 696,|53. Patented Mar. 25, |902.

w. A. BARTON.

ATOMIZING APPARATUS.

{Applicaton iled Dec. 29. 1.900.)

Mio Model.)

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UNITED STATES VPATENT OFFICE.

WILLIAM A. BARTON, OF JERSEY CITY, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO WALTER J. SMART, OF BROOKLYN, NEXV YORK.

vATOM IZI NG APPARATU S.

SPECIFICATION forming part of Letters Patent No. 696,158, dated March 25, 1902.

Application filed December 29, 1900. Serial No. 41,464. (No model.)

projection of a liquid or other mobile sub-Y io stance toward or against a surface or object interposed in the path of a stream thereof. Such devices are used, for example, to effect an atomization or division into fine particles of paints, varnishes, lacquers, duc., and to i thereupon apply the material in this condition to the surface to be treated.

It is an object of this invention to furnish a device or apparatus for this purpose whose construction is such as to present especial facilities for its cleansing,whi leits operation is at all times efficient and may be readily adapted to liquids of differentdegrees of fluidity or viscosity. Provision also exists for overcoming the tendency of a liquid to settle or separate into layers of different specific gravities, whereby the composition of the liquid applied to the surface may be kept substantially uniform. It is an object also of the present invention to provide a construction particularly suitable for application to a portable form of apparatus.

I will describe an apparatus embodying the features of my invention and subsequently define the novelty thereof in claims.

In the drawings which accompany this specification, Figure l is an elevation of such an apparatus. Fig. 2 is a top view thereof, and Fig. 3 is a central longitudinal section through the apparatus.

Similar characters of reference designate corresponding parts in all the figures of the drawings. v

In the embodiment of the invention illustrated and particularly described the features thereof are applied to a portable form of apparatus.

A suitable tank or pot B of convenient size is provided for holding the liquid to be applied. This receptacle may be made of any suitable form and material; but preferably the sides thereof Will be connected to the bottorn part by a portion making an obtuse angle with the connected parts of the receptacle where joined thereto, as such construction will present no corners or crevices for the lodgment of pigment or other sediment, and thereby facilitate the thorough stirring of the contained liquid. This connecting portion is designated by b and may have the curved form shown.

The material is raised from the receptacle by projecting a stream of air under pressure across and above the open end of a pipe or duct extending thereinto. This pipe is shown at 2 and preferably reaches to a point adjacent to the bottom of the receptacle in order that substantially all the material may be drawn from the latter. The upper orout'let orifice of this pipe 2 will preferably be formed in an adjustable and removable tip or nozzle 3, which may therefore be readily replaced by another if at any time it is desired to change toa nozzle having a differently-formed orifice or one of different dimensions. This orifice is shown as being elongated in one direction, and if the tip is made adjustable, as stated,..the orifice may be brought with its longer axis into alinement with the air-tube, or the tip may be so adjusted that such axis will be disposed at an angle to the axis of the air-tube, whereby the character or form of the spray-stream may be regulated.

An air-tube 4 is located to deliver a stream of air above and across the orifice in the nozzle 3, and the exit-orifice of this air-tube may likewise be formed in a removable nozzle 5 to Ifacilitate a change from alarger to a smaller sized orifice, or Vice versa. .y

The air-tube 1l is valve-controlled, the valve being arranged in such a position relative to the handle 6 of the receptacle as tobe in reach of the thumb or finger of the hand holding the apparatus.

Any suitable form and construction of valve may be used or that particular organization illustrated in the drawings attached to this specification. As therein set forth, a valve 7 is provided with piston-like extensions 7b, adapted to slide through the body of the airtube 4: and properly guide the valve toward and away from its seat. These extensions 7b are provided with one or more passages 8 to permit the free movement of the air forward, and one of the extensions is herein shown to form a bearing for a reseating-spriug 8', interposed between the extension and a shoulder E), formed within the bore of the air-tube. If constructed and arranged according to the manner illustrated, the tension of this spring 8 will be sufficient to close the valve against the pressure of the air, while the valve may be pressed away from its seat to permit the escape of air by means of a valve-stein 10, projecting outward through a stuffing-box l1 and provided wit-h a thumb-piece 12 at its outer extremity, so located with respect to the aforementioned handle 6 as to be reached by the thumb or finger of the hand which grasps the.

handle.

A fitting 13, whose bore in the present instance communicates with lthe space to the rear of the valve 7, is secured to the tube 4C for the ready attachment of an air-supply pipe.

Many liquids used for treatingsurfaces,&c., tend to separate in time into different layers, depending upon the relative densities of their components, and thus destroy the uniformity of composition. lt is desirable therefore to provide some means for occasionally stirring the material to render it homogeneous, and this I accomplish in the present apparatus by passing some of the compressed air into the liquid, preferably to a point adjacent to the bottom of the receptacle. This inlet of the air for the purpose of stirring is preferably under control. These results are attainable by the construction set forth, in which a pipe or duct 14, terminating near the bottom of the receptacle, is connected to the air-tube 4, while adjacent to this latter tube the passage through the pipe or duct 14E is preferably controlled byavalve 141 of any desired construction. Assuming that this valve 14h is open, it is manifest that each time the thumb-piece 12 is pressed inward a portion of the air which escapes past the valve 7 will pass downward through the pipe or duct 1t and agitate the liquid, resultingin a thorough mixing thereof. The thoroughness of this action is increased, as before stated, by a construction of the receptacle before referred to. This injection of air into the liquid maybe suspended at any time by closing the Valve 111.

For the purpose of rendering all parts of the receptacle accessible and unobstructed by any of the details of the apparatus with the object of facilitating the cleaning of the latter the position of these various details and features will preferably be so related to the receptacle as not to interfere or be in the way in getting at the surfaces to be cleaned. Their relation and construction may also be such as to permit them and the receptacle to be cleaned independently of each other. For instance, they may be located upon a part or plate which is detachably secured to the receptacle. Such is the construction set forth in the drawings, where this removable plate 15 is shown as constituting a covcr for the receptacle, to which the air-tube 4 and fluidoutlet pipe 2 are secured.

In practical use the apparatus is likely to receive more or less rough treatment, and I therefore deem it advisable to securely and positively interlock the cover to the tank in order to prevent their accidental disengagement. Means for this purpose are shown consisting of a so-called bayonet-joint connection having a construction comprising a suitable number of lugs 1G, attached to the plate 15, into a channel on each of which the inwardlyprojecting upper lip 17 of the receptacle enters when the plate is in place. Notches 18, corresponding in number to the number of lugs 16, permit the plate to be applied to the receptacle, when upon turning them slightly relatively to each they are secured one to another, a spring-finger 19 snapping into a notch, here shown to consist of one of the notches 18.

Constructed as illustrated and described for portable use it is evident that upon the delivery of air under pressure to the apparatus the same may be readily manipulated to spread a liquid in an atomized condition, Whether it be a varnish, a lacquer, a paint, or a japan or any other mobile material capable of being drawn upward through a suction-tube. Furthermore, the force and volume of the issuing air may also be regulated by a varying pressure on the thumb-piece, while the contained liquid may be agitated at any time to render it homogeneous by the regulation of the valve 14D, the air escaping from the receptacle through the joint between the receptacle and plate 15.

A detachment ot the plate from the receptacle permits the liquid to be poured into the latter, while from the fact that the features and details may be removed from the receptacle they mayall bereadilyand expeditiously cleaned.

Having described my invention, I claim- 1. In a portable atomizing apparatus, the combination with a tank, of an airtube mounted upon the apparatus, a liquid-outlet tube also mounted upon the apparatus and across the upper end of which said air-tube is adapted to deliver a stream of air and a tip in which the orifice of the liquid-outlet tube is formed, said orifice being elongated in one direction and the tip being adjustably secured to the liquid-outlet tube whereby said orifice may be adjusted and its longer axis brought into alinement with the axis of the air-tube or positioned at an angle thereto and the form of the spray-stream thereby altered.

2. In a portable atomizing apparatus, the combination with a tank of an air-tube mounted upon the apparatus, a liquid-outlettube also mounted upon the apparatus and across the upper end ot' which said air-tube is adapted to deliver a stream of air, a removable tip secured to the air-tube, and a tip in which the orifice of the liquid-outlet tube is formed, said orifice being elongated in one IIO direction. and the. tip in which this orifice is.

i combination with a tank, ot' a handle secured thereto; a liquid-outlet tube Vmounted upon the apparatus and terminating at its lower.

end adjacent to the bottom 'of the tank; an air-tube mounted upon the apparatus with its axis disposed at an angle to the axis of the liquid-outlet tube and its orifice ina position adapting it to` project a stream of air across the upper end of the liquid-outlet tube;

a tube yextending from the air-tube into the j tank-for the agitation of thecontents thereof; a normally closed valve in the air-tube; a

valve-stem projecting from the air-tube and terminating` within convenient reach ofthe hand when grasping said handlegand means for attaching a conduit for compressed air to the air-tube.. t

4. .In-a portable atomizing apparatus, the combination with a tank, of a handle secured thereto; a liquid-,outlet tube mountedcupon the apparatus and terminating at-its lower end adjacent to the Vbottom ofthe tank; atip in which the oriticeof the liquid-outlet tube, is formed, said orifice being elongated-inone direction and the tip being adjustably secured to the liquid-outlet tube; an air-tube mounted upon the apparatus withA its axis disposed-at an angle'to the axis Vof` the liquid-outlet tube and itsorifice in a position adapting it to.

project a stream of air. across `the'said tip secured to the liquid-outlet-vtube; a normally. closed valve-stem projecting from the air-tube, and terminating Within convenient reach of the hand when grasping said handle; and means for attaching a conduit for compressed air tothe air-tube. i v i l n 5. In a portable atomizingapparatus, the combination with atank, of a handle secured thereto; a coverremovably engaged therewith; aliquidoutlet tube mounted upon the. apparatus and terminating atl its lower end adjacent to the bottom of theftank;va tip in which the orilice of the liquid-outlet tube ist'ormed; saidv oriiice being; elongated in one direction and the tip being adjustably'securedvto the liquid-outlet tube; an'air-tube.

secured to said cover with its axis disposed at an angle to thefaxisot the liquid-outlet tube and its orifice ina position adapting it;

to projecta stream of air across the said tip secured to the liquid-outlet tube; a normally closed Valve in the air-tubey'aVvalve-stem projecting from the air-tube and-terminatingl Within convenient reach of the hand when grasping said handle; and means for attaching a conduit for compressed air to the4 air` tube.

6. In a portable atomizing apparatus,'the

combination with a tank of a handle secured" thereto; a cover removably engaged therewith; a liquid-outlet tube-mounted upon the apparatus and terminating at its'lower endadjacentto the bottom off the tank; an airtube securedy to 'said coverwithits axis disposed at an angle to theaxis of the liquidoutlettube and its orifice in a position adapting it to project arstream of air across the said liquid-outlet tube;- a valvecontrolled tube extending from the air-tube into the-tank` for the agitation of the contents thereof.; a

combination fvvitha tank of a handle secured thereto; a -cover removably engaged there- With; a liquid-outlettube'mounted upon the apparatusiand terminating at itslower end adjacent` to the bottom of the tank; a tip in which the orifice of the liquid-*outlet tube is formed, said orilice being elongated in one direction and the tip beingadjustably secured to the liquid-outlet tube; an air-tube secu red. to said coverrwith its axis disposed at anlaugle to the axis of theliquid-outlettube; atipv in which the orifice of the air-tube is formed,

andwhich is vremovably secured to said airtube; a normally closed Valvein the ai 1'-'tube; 5 a valve-stem projecting from the air-tubezand 1 terminatingwithin convenient reachof the hand when'grasping said handle and means for attaching a conduit forcompressedair to the air-tube. r a 8. In a' portable atomizing apparatus,tthe

V combination with a tank,fof avhandle secured thereto; a removable cover adapted to posi- Y tively interlock -with the edge of thetank and be prevented thereby from accidentaldisengagement from the tank; a'liquid-outlettube mounted upon the apparatus and terminating at its lower end adjacent-to the bottomof the. tank; a tip in-` which'the orifice of theliquid'y outlet tube is formed; lsaid orifice being elongated in one direction andthe tipbeingadjustably secured to theliquid-outlet tube; :an air-tube secured to-saidrvcoverxwith its axis disposed at an angle. to the axis of the liquidoutlet tube andits orifice in a position adapt-l' ing it to project a stream of. air acrossfthe said tip secured to'` the liquid-outlet tube; a

IIO

normally closed valve in'theair-tube; a valvei stem projecting from .the'air-tnbeand termif nati'ng-within convenientreach of'the hand*V when grasping said handle and means for attaching a conduit for air-tube.

9. In a-portalole atomiaingiapparatus, the combination with a tank of a handle secured` thereto; a removablevcover adapted to positively interlock with the edge of thetank, and beprevented thereby'from accidentaldisencompressed. air to the gagement from'the tank; a liquid-outlet tube Y inounted' upon the apparatus and terminat- Y ing at its lower end adjacent to the bottom of the tank; au air-tube secured to said cover with its axis disposed at an angle to the axis of the liquid-outlet tube and its oritlce in a position adapting it to project a stream of air across the said liquid-outlet tube; a valvecontrolled tube extending from the air-tube into the tank for the agitation of the contents thereof; a normally closed valve in the airtube; a valve-stem projecting from the airtube and terminating within convenient reach of the hand when grasping said handle; and means for attaching a conduit for compressed air to the air-tube.

10. In a portable atomizing apparatus, the combination with a tank, of a handle secured thereto; a removable cover adapted to positively interlock with the edge of the tank and be prevented thereby from accidental disengagement from the tank; a liquid-outlet tube mounted upon the apparatus and terminating at its lower end adjacent to the bottom of the tank; a tip in which the orice of the liquid-outlet tube is formed, said orifice being elongated in one direction andthe tip being adjustably secured to the liquid-outlet tube; an air-tube secured to said cover with its axis disposed at an angle to the axis of the liquid-outlet tube and its orifice in a position adapting it to project a stream of air across the said tip secured to the liquid-outlet tube; a normally closed valve in the airtube; a valve-stem projecting from the airtube and terminating within convenient reach of the hand when grasping said handle and means for attaching a conduit for compressed air to the air-tube.

11. In aportable atomizing apparatus, the l combination with a tank, of a handle secured i thereto; a removable cover adapted to positivelyinterlock with the edge of the tank, and bc prevented thereby from accidental disengagement from the tank; a liquid-outlet tube mounted upon said cover and terminating at its lower end adjacent to the bottom ot' the tank; an air-tube secured to said cover with its axis disposed at an angle to the axis of the liquid-outlet tube and its orifice in a position adapting it to project a stream of air across the said liquid-outlet tube; a valvecontrolled tube extending from the air-tube into the tank for the agitation of the contents thereof; a normally closed valve in the airtube; a valve-stem projecting from the airtube and terminating within convenient reach of the hand in grasping said handle; and means for attaching a conduit for compressed air to the air-tube.

12. Aportable atomizing apparatus having in combination with a tank and a cover removably secured thereto, of an air-tube and a liquid-outlet tube secured to the cover, a valve mounted in the air-tube and provided with cylindrical perforated extensions adapting the valve to slide to and fro in the airtube and cooperate with its seat; a spring for urging the valve in one direction; a valvestem projecting from the valve outward from the air-tube; and a finger-piece upon said valve-stem.

In Witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

WILLIAM A. BARTON.

lVitnesses:

PIERsoN L. WELLS, RUDOLPH Lonnox. 

